Why are images not showing up in the Django admin?

Question

Django

For some reason, pictures in the admin panel are not loaded, instead of them, just squares.
And yet, how can I change the name of the get_photo column to something else?

admin.py

class NewsAdmin(admin.ModelAdmin):
    list_display = ('id', 'title', 'category', 'pub_date', 'is_published', 'get_photo')
    list_display_links = ('id', 'title')
    search_fields = ('id', 'title', 'content')
    list_editable = ('is_published', 'category')
    list_filter = ('pub_date','is_published',)

    def get_photo(self, obj):
        if obj.photo:
            return mark_safe(f'<img src="{obj.photo.url}" width="75px">')

Answer 1

Have you adjusted the static output ?